Interesting! Thank you very much Lup for investigating it further! BR, Alan
On Mon, Jan 15, 2024 at 2:34 AM Lee, Lup Yuen <lu...@appkaki.com> wrote: > << Do you think it is possible to find an alternative to use the users' > browser connection to communicate to the Internet? This way it avoids > users' consumption of all internet limits on the server side. >> > > Hi Alan: You're right, TinyEMU Emulator talks to a WebSocket VPN hosted at > ` > relay.widgetry.org` that's throttled at 40 kB/s (for free, fair use). But > I > don't see a good alternative to this WebSocket VPN: > > (1) Can the Web Browser talk directly to the internet without WebSocket > VPN? > > TinyEMU and VirtIO Networking are sending Ethernet Frames / IP Packets from > the Web Browser to the internet. But Web Browsers are not allowed to send > IP Packets directly. That's why we need to tunnel the packets through a > WebSocket VPN. > > (2) Can we host our own WebSocket VPN on our Local Computer? > > Possibly. But then we will have to host the Web Server on our Local > Computer too. Which makes it cumbersome to install. > > (3) Can we host the WebSocket VPN on a server operated by the NuttX > Project? > > Probably not, because we need to throttle the internet traffic for free, > fair use. And prevent abuse. > > I've documented my findings on TinyEMU, VirtIO Networking and WebSocket > VPN: > > https://github.com/lupyuen/nuttx-tinyemu#tinyemu-networking-in-the-web-browser > > Lup > > On Sun, Jan 14, 2024 at 9:54 PM Alan C. Assis <acas...@gmail.com> wrote: > > > Hi Lup, > > > > Thank you very much! > > > > Looking at the WebSocket VPN article it said the connection goes through > > the server hosting the emulator. > > > > Do you think it is possible to find an alternative to use the users' > > browser connection to communicate to the Internet? > > This way it avoids users' consumption of all internet limits on the > server > > side. > > > > BR, > > > > Alan > > > > On Sun, Jan 14, 2024 at 4:17 AM Lee, Lup Yuen <lu...@appkaki.com> wrote: > > > > > Thanks Alan! Yep "The Construct" looks like a cool way to learn ROS > > online, > > > we should do something similar for Teaching NuttX Online! > > > > > > As for Emulated Networking in the Web Browser: TinyEMU Emulator > supports > > > VirtIO Networking. But it's tunnelled through a WebSocket VPN, because > of > > > browser limitations. > > > > > > I might test this with NuttX and see how well it works. (I'm also keen > to > > > emulate Ox64 BL808 RISC-V SBC in the Web Browser) > > > > > > TinyEMU VirtIO Networking: https://bellard.org/jslinux/tech.html > > > > > > WebSocket VPN: > > > https://www.benjamincburns.com/2013/11/10/jor1k-ethmac-support.html > > > > > > Lup > > > > > > On Sun, Jan 14, 2024 at 8:10 AM Alan C. Assis <acas...@gmail.com> > wrote: > > > > > > > Really cool Lup! > > > > > > > > Maybe it could be used for training and deduction purposes. Do you > know > > > > "The Construct" they are using a solution like that to run Linux in > the > > > > browser: > > > > > > > > https://app.theconstructsim.com/login/ > > > > > > > > Is it possible to get network enabled and use it to communicate? It > > could > > > > open new possibilities! > > > > > > > > BR, > > > > > > > > Alan > > > > > > > > > > > > On Sat, Jan 13, 2024 at 8:30 PM Lee, Lup Yuen <lu...@appkaki.com> > > wrote: > > > > > > > > > NuttX now boots and runs inside a Web Browser! (With WebAssembly) > > > > > > > > > > Try "ostest" here: https://lupyuen.github.io/nuttx-tinyemu > > > > > > > > > > This article explains how we… > > > > > (1) Boot NuttX in the Web Browser with TinyEMU RISC-V Emulator > > > > > (2) Modify NuttX for HTIF Console (Berkeley Host-Target Interface) > > > > > (3) Explore VirtIO Console with OpenAMP Library > > > > > (4) And how we might use it: Emulate NuttX Gadgets in the Web > > Browser? > > > A > > > > > Real-Time NuttX Dashboard that lights up as the various NuttX > Drivers > > > are > > > > > called? > > > > > > > > > > Here's the article: > > > https://lupyuen.codeberg.page/articles/tinyemu.html > > > > > > > > > > How will you use NuttX in a Web Browser? Please lemme know 🙏 > > > > > > > > > > Lup > > > > > > > > > > > > > > >
